or
1 answer
152 views
HI,
i'm using RadControls for WPF Q1 2012 SP1 + c# to create my application. The problem i have:
I use two listboxes wich are bind to an observableCollection. Now i want to drag an item from listbox A to listbox B
what is quiet simple. But on Drop in listbox B i want to save changes in my database. how do i get the information
isdropped, which item is dropped,...?
I tried the Drop (drop="myDropEvent") Event from the listbox, but that was not helpfull.
Thanks
regards
Rene
i'm using RadControls for WPF Q1 2012 SP1 + c# to create my application. The problem i have:
I use two listboxes wich are bind to an observableCollection. Now i want to drag an item from listbox A to listbox B
what is quiet simple. But on Drop in listbox B i want to save changes in my database. how do i get the information
isdropped, which item is dropped,...?
I tried the Drop (drop="myDropEvent") Event from the listbox, but that was not helpfull.
Thanks
regards
Rene
Nick
Telerik team
answered
on
17 May 2012
3 answers
126 views
Hello,
I am trying to display 3 columns in one.
The result must be like this http://imageshack.us/photo/my-images/560/headergbiv.png/
Because the number of columns to display is variable the TreeListView is completly created in C#.
Is it possible to create such headers in this case?
Thank you
I am trying to display 3 columns in one.
The result must be like this http://imageshack.us/photo/my-images/560/headergbiv.png/
Because the number of columns to display is variable the TreeListView is completly created in C#.
Is it possible to create such headers in this case?
Thank you
Nick
Telerik team
answered
on
17 May 2012
1 answer
133 views
I know how to implement a SnapBehavior for a ViewDefinition. But is there a way to implement different SnapBehaviors for different resources in the same view?
Yana
Telerik team
answered
on
17 May 2012
3 answers
217 views
I am using the radTileview that has lots of child controls in each tileitem . The itemsource of the tileview can be potentially very large ( in millions). If I try to load all the tiles, the ui hangs and it takes too long. So what I want to do is read the first 10 data items for the first 10 tileitems from my datasource and show it on the screen and then in the background keep populating the datasource model ( which is an observable collection ). As the datasource gets populated, the tileview should refresh and show the new items.
I tried the following
1. Creating the data source on a background thread, but this does not refresh the ui
2. Using the dispatcherTimer, but the behaviour is quite random. It refreshes the first lot of data and then the screen blanks out
I have set the following properties on the tileview
Please can you suggest some best practises and I would be very obliged if you can send me some sample / example code. The tile view
Many thanks,
Subarna
I tried the following
1. Creating the data source on a background thread, but this does not refresh the ui
2. Using the dispatcherTimer, but the behaviour is quite random. It refreshes the first lot of data and then the screen blanks out
I have set the following properties on the tileview
IsAutoScrollingEnabled
="True" IsVirtualizing="True"
Please can you suggest some best practises and I would be very obliged if you can send me some sample / example code. The tile view
Many thanks,
Subarna
Zarko
Telerik team
answered
on
17 May 2012
1 answer
170 views
Hi,
I got following exception when I drop the the RadChartesianChart to the empty WPF project, move it and then resizing the chart size in design time?!
XAML:
I'm using 2012.1.326.40 version of radControls
What could be the reason?
Regards,
Auvo
I got following exception when I drop the the RadChartesianChart to the empty WPF project, move it and then resizing the chart size in design time?!
System.InvalidOperationException
Cannot set a property on object 'System.Windows.Media.TranslateTransform' because it is in a read-only state.
at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal) at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value) at Telerik.Windows.Controls.ChartView.CartesianAxis.UpdateAxisLine(ChartLayoutContext context) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\Common\CartesianAxis.cs:line 78 at Telerik.Windows.Controls.ChartView.LineAxis.UpdateUICore(ChartLayoutContext context) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\Common\LineAxis.cs:line 64 at Telerik.Windows.Controls.ChartView.PresenterBase.UpdateUI(ChartLayoutContext context) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\Common\PresenterBase.cs:line 204 at Telerik.Windows.Controls.ChartView.RadChartBase.UpdateUICore(ChartLayoutContext context) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\RadChartBase.cs:line 461 at Telerik.Windows.Controls.ChartView.PresenterBase.UpdateUI(ChartLayoutContext context) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\Common\PresenterBase.cs:line 204 at Telerik.Windows.Controls.ChartView.RadChartBase.CallUpdateUI() in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\RadChartBase.cs:line 1001 at Telerik.Windows.Controls.ChartView.RadChartBase.ArrangeOverride(Size finalSize) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\RadChartBase.cs:line 708
....XAML:
<Grid>
<telerik:RadCartesianChart HorizontalAlignment="Left" Margin="12,12,0,0" Name="radCartesianChart1" VerticalAlignment="Top" Height="265" Width="453">
<telerik:RadCartesianChart.HorizontalAxis>
<telerik:CategoricalAxis />
</telerik:RadCartesianChart.HorizontalAxis>
<telerik:RadCartesianChart.VerticalAxis>
<telerik:LinearAxis />
</telerik:RadCartesianChart.VerticalAxis>
<telerik:BarSeries>
<telerik:BarSeries.DataPoints>
<telerik:CategoricalDataPoint Label="10" Value="10" />
<telerik:CategoricalDataPoint Label="20" Value="20" />
<telerik:CategoricalDataPoint Label="30" Value="30" />
</telerik:BarSeries.DataPoints>
</telerik:BarSeries>
</telerik:RadCartesianChart>
</Grid>
I'm using 2012.1.326.40 version of radControls
What could be the reason?
Regards,
Auvo
Nikolay
Telerik team
answered
on
17 May 2012
9 answers
262 views
Hello everybody :)
My scenario is the following:
I have a TreeView with services grouped by category just like this:
Cateogory 1:
Service 1
Service 2
Category 2:
Service 3
Service 4:
And another empty TreeView. The user can drag and drop services from the "services-tree" to the "empty-tree".
I have set the IsDragDropEnable = true, and the default behavior is great but I want to customize the default behavior of the TreeView to achieve the following:
1.- When the user drag an drop successfully a service, this service should not be removed from the "service-tree".
2.- Prevent that the user drop the same service into the "empty-tree" more than once. The "empty-tree" cannot host the same item more than once.
3.- Allow that the user reorder the services on the "empty-tree", i.e. allow drag and drop for the items of the "empty-tree" before or after it current position but no inside of each other.
Can you tell me please which events I have to handle to achieve this behavior? If possible I really appreciate if you add some code snippets.
Is this possible?
I hope you can help me.
Best Regards
Jorge
Petar Mladenov
Telerik team
answered
on
17 May 2012
10 answers
463 views
Good afternoon,
I'm trying to build my own Autocomplete (intellisense) RadRichTextBox. For the autocomplete popup I'm using your RadListView.
Do you know how I can get the caret position and set the RadListBox position next to it / slightly offset?
Thank you very much for your time,
Rob
I'm trying to build my own Autocomplete (intellisense) RadRichTextBox. For the autocomplete popup I'm using your RadListView.
<Grid> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinitions> <!-- RichTextBox --> <telerik:RadRichTextBox x:Name="radRichTextBox" AcceptsReturn="True" Width="800" Margin="10" Grid.Column="0" DocumentContentChanged="radRichTextBox_DocumentContentChanged"> <telerik:RadRichTextBox.Effect> <DropShadowEffect ShadowDepth="10" Color="Gray" Opacity=".4" Direction="320" RenderingBias="Performance" /> </telerik:RadRichTextBox.Effect> <telerik:RadRichTextBox.LayoutTransform> <ScaleTransform ScaleX="{Binding ElementName=Scale, Path=Value}" ScaleY="{Binding ElementName=Scale, Path=Value}" /> </telerik:RadRichTextBox.LayoutTransform> <telerik:RadDocument x:Name="radDocument" /> </telerik:RadRichTextBox> <!-- AutoCompltete ListBox--> <telerik:RadListBox Width="100" Height="100"> <ListBoxItem Content="Item 1" /> <ListBoxItem Content="Item 2" /> <ListBoxItem Content="Item 3" /> <ListBoxItem Content="Item 4" /> </telerik:RadListBox> </Grid>Do you know how I can get the caret position and set the RadListBox position next to it / slightly offset?
Thank you very much for your time,
Rob
Robert
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answered
on
16 May 2012
1 answer
101 views
We are using HtmlFormatProvider to export the content of a RichTextBox, you can set the styles to be exported Inline instead of creating classes, but, is there a way to export it on Html markup only?
<i>tag</i>
instead of
<span style="font-style: italic"> tag</span>
Thanks in advance
<i>tag</i>
instead of
<span style="font-style: italic"> tag</span>
Thanks in advance
Mihail
Telerik team
answered
on
16 May 2012
2 answers
382 views
I know this is an odd request and probably not Ideal but is there anyway to set a wpf checkbox to be checked when the binding value is false and unchecked when it is true? The checkbox is bound to a field in a database object and because of a legacy application I can't just reverse the values in the table.
Dev
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answered
on
16 May 2012
2 answers
118 views
Good morning,
I've followed the example provided by BreadCrumb control, but when I try to enter in TextMode text path isn't display (BreadCrumb is white).
In my output console there are two strange errors:
1) "System.Windows.Data Error: 25 : ItemTemplate and ItemTemplateSelector are not valid for item.; Type='RadBreadcrumbBarItem'"; it occurs at application startup.
2) "System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=(0); DataItem=null; target element is 'RotateTransform' (HashCode=36078627); target property is 'Angle' (type 'Double')"; it occurs if I try to enter in TextMode.
Could you help me?
NOTE: problems occur with dlls version 2012.1.0326.35 and also with the last nightly build 2012.1.0507.35
NOTE 2: my program is build on Framework 3.5 and I'm using telerik dll for 3.5 (but I've tested also with 4.0 but problems persist)
I've followed the example provided by BreadCrumb control, but when I try to enter in TextMode text path isn't display (BreadCrumb is white).
In my output console there are two strange errors:
1) "System.Windows.Data Error: 25 : ItemTemplate and ItemTemplateSelector are not valid for item.; Type='RadBreadcrumbBarItem'"; it occurs at application startup.
2) "System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=(0); DataItem=null; target element is 'RotateTransform' (HashCode=36078627); target property is 'Angle' (type 'Double')"; it occurs if I try to enter in TextMode.
Could you help me?
NOTE: problems occur with dlls version 2012.1.0326.35 and also with the last nightly build 2012.1.0507.35
NOTE 2: my program is build on Framework 3.5 and I'm using telerik dll for 3.5 (but I've tested also with 4.0 but problems persist)
Elfo
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answered
on
16 May 2012
